Maximum average forward current
at case temperature
Maximum RMS forward currentI
Maximum peak, one-cycle forward,
non-repetitive surge current
2
Maximum I
Maximum I
t for fusingI2t
2
√t for fusingI2√tt = 0.1 ms to 10 ms, no voltage reapplied16 000
Value of threshold voltage
(up to 1200 V)
Value of threshold voltage
(for 1400 V, 1600 V)
Value of forward slope resistance
(up to 1200 V)
Value of forward slope resistance
(for 1400 V, 1600 V)
Maximum forward voltage dropV
I
F(AV)
F(RMS)
I
FSM
V
F(TO)
r
f
FM
180° conduction, half sine wave
t = 10 ms
t = 8.3 ms1800
t = 10 ms
t = 8.3 ms1500
t = 10 ms
t = 8.3 ms13 500
t = 10 ms
t = 8.3 ms9400
No voltage
reapplied
100 % V
RRM
reapplied
No voltage
reapplied
100 % V
RRM
reapplied
TJ = TJ maximum
TJ = TJ maximum
Ipk = 267 A, TJ = 25 °C, tp = 400 µs rectangular wave1.21.4V
Sinusoidal half wave,
initial T
= TJ maximum
J
85HF(R)
10 to 120140/160
85A
140110°C
133A
1700
1450
14 500
10 500
0.68
0.69
1.62
1.75
UNITS
A
A2s
2
√s
A
V
mΩ
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETERSYMBOLTEST CONDITIONS
Maximum junction operating and
storage temperature range
Maximum thermal resistance,
junction to case
Maximum thermal resistance,
case to heatsink
Maximum shock
Maximum constant vibration
(1)
(1)
Maximum constant acceleration
Maximum allowable mounting
torque (+ 0 %, - 10 %)
, T
T
J
Stg
R
thJC
R
thCS
DC operation0.35
Mounting surface, smooth, flat and greased0.25
50 Hz
(1)
Stud outwards
Not lubricated thread, tighting on nut
Lubricated thread, tighting on nut
(2)
(2)
Not lubricated thread, tighting on hexagon
Lubricated thread, tighting on hexagon
(3)
(3)
Approximate weightUnleaded device
Case styleSee dimensions - link at the end of datasheetDO-203AB (DO-5)
Notes
(1)
Available only for 88HF
(2)
Recommended for pass-through holes
(3)
Recommended for holed threaded heatsinks
85HF(R)
10 to 120140/160
- 65 to 180 - 65 to 150°C
1500
20
5000
3.4 (30)
2.3 (20)
4.2 (37)
3.2 (28)
17g
0.6oz.
UNITS
K/W
g
N · m
(lbf · in)
85HF(R) Series
Standard Recovery Diodes,
Vishay High Power Products
(Stud Version), 85 A
ΔR
CONDUCTION ANGLESINUSOIDAL CONDUCTIONRECTANGULAR CONDUCTIONTEST CONDITIONS UNITS
Note
• The table above shows the increment of thermal resistance R
CONDUCTION
thJC
180°
120°
90°
60°
30°
180
85HF(R) Series (100V to 1200V)
RthJC (DC) = 0.35 K/W
170
160
150
30°
140
Maximum Allowable Case Temperature (°C)
130
0 1020304050607080 90 100
60°
Fig. 1 - Current Ratings Characteristics
0.100.08
0.110.11
0.130.13
0.170.17
0.260.26
when devices operate at different conduction angles than DC
thJC
Conduction Angle
90°
120°
180°a
)A( tnerruC drawroF egarevA
T
= TJ maximumK/W
J
150
140
130
120
110
Maximum Allowable Case Temperature (°C)
100
85HF(R) Series (1400V to 1600V)
RthJC (DC) = 0.35 K/W
Conduction Angle
30°
60°
90°
120°
0 1020304050607080 90 100
Average Forward Current (A)
Fig. 3 - Current Ratings Characteristics
180°
180
85HF(R) Series (100V to 1200V)
RthJC (DC) = 0.35 K/W
170
160
Conduction Period
150
30°
140
Maximum Allowable Case Temperature (°C)
130
020406080 100 120 140
60°
90°
120°
180°
Fig. 2 - Current Ratings Characteristics
150
85HF(R) Series (1400V to 1600V)
RthJC (DC) = 0.35 K/W
140
130
Conduction Period
120
30
°
60
110
DC
)A( tnerruC drawroF egarevA
Maximum Allowable Case Temperature (°C)
100
020406080 100 120 140
°
90
°
120
°
180
°
Average Forward Current (A)
DC
Fig. 4 - Current Ratings Characteristics
85HF(R) Series
Vishay High Power Products
90
80
70
60
RMS Limit
50
40
30
20
10
Maximum Average Forward Power Loss (W)
0
0102030405060708090
Average Forward Current (A)
120
100
80
60
40
20
Maximum Average Forward Power Loss (W)
0
DC
°
180
120
°
90
°
60
°
30
°
RMS Limit
0 20406080 100 120 140
Average Forward Current (A)
Standard Recovery Diodes,
(Stud Version), 85 A
180
°
120
°
90
60
30
°
°
°
Conduction Angle
85HF(R) Series
(100V to 1200V)
Tj = 180˚C
2 K/W
3 K/W
5 K/W
10 K/W
020406080 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
Fig. 5 - Forward Power Loss Characteristics
3 K/W
Conduction Period
85HF(R) Series
(100V to 1200V)
Tj = 180˚C
5 K/W
10 K/W
020406080 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
1.5 K/W
1 K/W
1.5 K/W
2 K/W
1 K/W
0.7 K/W
0.7 K/W
RthSA = 0.5 K/W - Delta R
RthSA = 0.5 K/W - Delta R
Fig. 6 - Forward Power Loss Characteristics
100
90
80
70
60
180
120
90
60
30
RMS Limit
°
°
°
°
°
50
40
30
20
10
Maximum Average Forward Power Loss (W)
0
0 102030405060708090
Average Forward Current (A)
Conduction Angle
85HF(R) Series
(1400V, 1600V)
Tj = 150˚C
Fig. 7 - Forward Power Loss Characteristics
0.7 K/W
1 K/W
1.5 K/W
2 K/W
3 K/W
5 K/W
10 K/W
RthSA = 0.5 K/W - Delta R
0255075100 125 150
Maximum Allowable Ambient Temperature (°C)
0
85HF(R) Series
140
120
100
80
60
40
20
Maximum Average Forward Power Loss (W)
0
1600
At Any Rated Load Condition And With
Rated Vrrm Applied Following Surge.
1400
1200
Standard Recovery Diodes,
(Stud Version), 85 A
DC
180
°
120
°
90
°
60
°
30
°
RMS Limit
Conduction Period
85HF(R) Series
(1400V, 1600V)
Tj = 150˚C
0 20406080 100 120 140
Average Forward Current (A)
Fig. 8 - Forward Power Loss Characteristics
Initial Tj = Tj Max.
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
0255075100 125 150
Vishay High Power Products
RthSA = 0.5 K/W - Delta R
0.7 K/W
1 K/W
1.5 K/W
2 K/W
3 K/W
5 K/W
10 K/W
Maximum Allowable Ambient Temperature (°C)
10000
Tj = 25
°C
1000
Tj = Tj Max.
1000
800
600
85HF(R) Series
Peak Half Sine Wave Forward Current (A)
400
11010
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 9 - Maximum Non-Repetitive Surge Current
1800
Maximum Non Repetitive Surge Current
1600
1400
Versus Pulse Train Duration.
Initial Tj = Tj Max.
No Voltage Reapplied
Rated Vrrm Reapplied
1200
1000
800
600
400
Peak Half Sine Wave Forward Current (A)
85HF(R) Series
200
0.010.11
Pulse Train Duration (s)
Fig. 10 - Maximum Non-Repetitive Surge Current
100
85HF(R) Series
Instantaneous Forward Current (A)
up to 1200V
10
0123456
Instantaneous Forward Voltage (V)
Fig. 11 - Forward Voltage Drop Characteristics
(up to 1200 V)
1000
Tj = Tj Max
100
Tj = 25
°C
10
Instantaneous Forward Current (A)
85HF (R) Series
1
00.511.522.5
Instantaneous Forward Voltage (V)
Fig. 12 - Forward Voltage Drop Characteristics
(for 1400 V, 1600 V)
85HF(R) Series
Vishay High Power Products
10
(K/W)
thJC
0.1
0.01
Transient Thermal Impedance Z
0.001
0.0001 0.001 0.010.1110
Fig. 13 - Thermal Impedance Z
ORDERING INFORMATION TABLE
Device code
Standard Recovery Diodes,
(Stud Version), 85 A
Steady State Value
RthJC = 0.35 K/W
1
(DC Operation)
85HF(R) Series
Square Wave Pulse Duration (s)
Characteristics
thJC
85HFR160M
51324
1-85 = Standard device
86 = Not isolated lead
87 = Isolated lead with silicone sleeve
(red = Reverse polarity)
(blue = Normal polarity)
88 = Type for rotating application
2-HF = Standard diode
3-None = Stud normal polarity (cathode to stud)
R = Stud reverse polarity (anode to stud)
4-Voltage code x 10 = V
(see Voltage Ratings table)
RRM
5-None = Stud base DO-203AB (DO-5) 1/4" 28UNF-2A
M = Stud base DO-203AB (DO-5) M6 x 1 (not available for 88HF)
DO-203AB (DO-5) for 85HF(R) and 86HF(R) Series
DIMENSIONS FOR 85HF(R) SERIES in millimeters (inches)
Ø 15.1 (0.59)
6.1/7
(0.24/0.27)
4 (0.16)
4 (0.16) MIN.
25.4 (1) MAX.
10.8 (0.42)
11.4 (0.45)
Outline Dimensions
Vishay High Power Products
11.1 ± 0.4
(0.44 ± 0.02)
1.20 (0.04)
1/4" 28UNF-2A
for metric devices: M6 x 1
17.35 (0.68)
Outline Dimensions
Vishay High Power Products
DO-203AB (DO-5) for
85HF(R) and 86HF(R) Series
DIMENSIONS FOR 86HF(R) SERIES in millimeters (inches)
12.2 (0.48) MAX.
123 (4.84)
134.4 (5.29)
MAX.
MAX.
Ø 7 (0.28) MAX.
DIMENSIONS FOR 88HF(R) SERIES in millimeters (inches)
DO-203AB (DO-5) for 85HF(R) and 86HF(R) Series
DIMENSIONS FOR 85HF(R) SERIES in millimeters (inches)
Outlines Table
Outline Dimensions
Vishay High Power Products
88HF(R)
Case Style DO-203AB (DO-5)
All dimensions in millimeters (inches)
Maximum Allowable Case Temperature (°C)
Average Forward Current (A)Average Forward Current (A)
Fig. 1 - Current Ratings CharacteristicsFig. 2 - Current Ratings Characteristics
Maximum Allowable Case Temperature (°C)
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
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